Home / 131,784.23-181,861.97-71,354.93

Finding the Fourth Proportional to 131,784.23, 181,861.97 and 71,354.93

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Solution

The fourth proportional to 131,784.23, 181,861.97 and 71,354.93 is: 98,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.23 : 181,861.97 = 71,354.93 : x
  2. Step 2: Convert to fraction form
    131,784.23/181,861.97 = 71,354.93/x
  3. Step 3: Cross multiply
    131,784.23x = 181,861.97 × 71,354.93
  4. Step 4: Simplify right side
    131,784.23x = 12,976,746,872.93
  5. Step 5: Solve for x
    x = 12,976,746,872.93/131,784.23
  6. Step 6: Final answer
    x = 98,469.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.